Denso 234-4352 Oxygen Sensor - Downstream

Denso OE Style Oxygen Sensor 234-4352

Denso 234-4352 is an OE Style heated oxygen sensor built for direct replacement on select Honda applications. It is engineered for a specific fit and uses a 4-wire, threaded design with a female connector and 10.75 in. wiring harness length for a clean replacement on downstream locations.

Compatible With 2003-2006 Honda Civic and 2005-2006 Honda CR-V downstream applications, this Denso oxygen sensor supports accurate exhaust feedback for vehicles that need a precise OE-style replacement. The Denso OE Style line focuses on exact fitment and factory-style performance, making 234-4352 a practical choice when replacing a worn downstream sensor on a Honda Civic or Honda CR-V.

Key Features

• Heated oxygen sensor for downstream exhaust monitoring
• Specific-fit design for direct replacement
• 4-wire configuration with female connector
• Threaded mounting type with 0.708 in. thread diameter
• 10.75 in. wiring harness length for application-specific routing
• OE Style Denso replacement built to match factory fit and function

Detailed Product Overview

Denso 234-4352 is manufactured and tested to OE standards, with precision-built components intended to match the original sensor location and connection style. The sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management performance and consistent fuel control over time. This part cross-references Bosch 15476 for the same application.

Common Replacement Uses

• Replacing a failed downstream oxygen sensor on a 2005-2006 Honda CR-V
• Replacing a downstream sensor on a 2004-2005 Honda Civic
• Replacing a downstream sensor on a 2003 Honda Civic, Calif., from engine #3S020136
• Addressing check engine light concerns tied to oxygen sensor circuit faults
• Restoring proper exhaust feedback after sensor aging or contamination

Installation Notes and Tips

Verify the downstream position, connector style, wire count, and thread size before installation. Confirm the vehicle year and engine-specific notes for 2003 Honda Civic California applications, and compare the original sensor routing to the 10.75 in. harness length before final fitment. Use the exact OE-style replacement location and tighten to the manufacturer’s specified torque procedure.

Quality Assurance

Denso builds this OE Style oxygen sensor to strict original-equipment standards and tests each component for fit and function. The precision replacement design helps ensure the right part and the right fit for the listed Honda Civic and Honda CR-V applications.